1 files changed, 116 insertions, 0 deletions
diff --git a/src/tastybutton.cpp b/src/tastybutton.cpp
new file mode 100644
index 0000000..9f89c05
--- /dev/null
+++ b/src/tastybutton.cpp
@@ -0,0 +1,116 @@
+/***************************************************************************
+ *   Copyright (C) 2006 by Marco Martin   *
+ *   [email protected]   *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#include "tastybutton.h"
+
+#include <qimage.h>
+#include <qpainter.h>
+#include <qpalette.h>
+#include <qcolor.h>
+#include <kimageeffect.h>
+
+TastyButton::TastyButton(QWidget *parent)
+ : QToolButton(parent)
+{
+  iconEffect = new KIconEffect();
+  iconEffect->init();
+}
+
+
+TastyButton::~TastyButton()
+{
+}
+
+void TastyButton::drawButton( QPainter * p )
+{
+  //background image or pseudo transparency
+  if( parentWidget()->erasePixmap() )
+  {
+    const QPixmap erasePix(size());
+    QPainter buffPainter(&erasePix);
+    buffPainter.drawPixmap(QPoint(0, 0), *parentWidget()->erasePixmap(), geometry());
+    buffPainter.end();
+
+    QImage eraseImg = erasePix.convertToImage();
+    if( isDown() )
+    {
+      KImageEffect::fade(eraseImg, 0.25, black);
+      p->drawPixmap(rect(), eraseImg );
+    }
+    else if( uses3D() )
+    {
+      KImageEffect::fade(eraseImg, 0.4, white);
+      p->drawPixmap(rect(), eraseImg );
+    }
+    else
+      p->drawPixmap(rect(), erasePix );
+
+    //lightScore = 0 grey, >0 lighter <0 darker
+    int lightScore = 0;
+    //chacks the brightness of 10 pixels of the diagonal
+    //we won't be 100% sure if this reflects the global brightess of the image
+    //but it seems to work well
+    int x = 0;
+    int y = 0;
+    while( x < eraseImg.width() && y < eraseImg.height() && x < 10 )
+    {
+      x=++y;
+      //deciding the text color to use
+      int h,s,v;
+      QColor(eraseImg.pixel(x,y)).getHsv( h, s, v );
+      // is purely empirical :)
+      if( v > 140) lightScore++;
+      else lightScore--;
+    }
+    if( lightScore < 0 )
+      setPaletteForegroundColor(white);
+    else
+      setPaletteForegroundColor(black);
+  }
+  //simple background color
+  else
+  {
+    if( isDown() )
+    {
+      p->fillRect(rect(), colorGroup().background().dark(120));
+    }
+    else if( uses3D() )
+    {
+      p->fillRect(rect(), colorGroup().background().light(120));
+    }
+    else
+    {
+      p->fillRect(rect(), colorGroup().background());
+    }
+  }
+
+  drawButtonLabel(p);
+}
+
+void TastyButton::setIconSet(  QIconSet is )
+{
+   is.setPixmap(iconEffect->apply(is.pixmap(),
+                                  (int)KIcon::Panel,
+                                  (int)KIcon::ActiveState),
+                                  QIconSet::Automatic,
+                                  QIconSet::Active);
+
+   QToolButton::setIconSet( is );
+}
+